Multiple correction device



Nov. 12, 1968 R. GLENN ET AL 3,410,251

MULTIPLE CORRECTION DEVICE Filed Aug. 29, 1967 United States Patent 3,410,251 MULTIPLE CORRECTION DEVICE Robert Glenn, 70-20 108th St., Forest Hills, N.Y. 11375, and Victor Barouh, 935 Plum Tree Road, Westbury, N.Y. 11590 Filed Aug. 29, 1967, Ser. No. 664,087 1 Claim. (Cl. 118-506) ABSTRACT OF THE DISCLOSURE A multiple correction device for use in simultaneously correcting erroneous typewritten impressions on an original and on a plurality of carbon copies comprising a plurality of frame members carrying correction material, the frames being pivoted to each other at an end and shaped at the free end so as to facilitate insertion between typewritten sheets to be corrected.

This invention relates to a multiple correction device for use in correcting erroneously typewritten impressions on carbon copies while also making a correction on the original.

Ordinarily, when an error is made when typing, the original as well as the carbon copies must be corrected. This is achieved either by erasure with its attendant tedious steps, or :by use of any one of the presently available correction materials having pressure sensitive coatings thereon, which is placed against the face of the original and copies so that a strike-over by the typewriter on the correction material will cover over the error and mask it, thereby permitting the correct letter or symbol to be thereafter struck by the typist.

When using correction materials in the past, the individual strips of correction material had to be separately taken from their containers from the location on the desk of the user and then individually placed into position and later removed individually. The concept of the present invention is to provide a device which will permit the correction of the original and carbon copies utilizing a single device which, in turn, also serves to best protect the typewritten original and the carbon copies.

It is therefore the primary object of the present invention to provide a multiple correction device for use in correcting simultaneously an original as well as carbon copies.

A further object of the present invention resides in the provision of a multiple correction device which has means for facilitating the insertion thereof against both the original and carbon copies of a typewritten document as it is being typed.

Still further objects and features of this invention reside in the provision of a multiple correction device which is simple in construction, which is extremely easy to use, which is inexpensive to manufacture and highly efficient in operation.

These, together with the various ancillary objects and features of this invention which will become apparent as the following description proceeds, are attained by this multiple correction device, a preferred embodiment of which has been illustrated in the accompanying drawing, by way example only, wherein:

FIG. 1 is a top plan view of the multiple correction device shown with the frames turned into a fan-like position;

FIG. 2 is a vertical sectional view looking in the direction of line 2-2 of FIG. 1 showing the frames in an aligned position;

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FIG. 3 is a sectional detail view looking along the plane of line 3-3 in FIG. 1;

FIG. 4 is a bottom plan view looking in the direction of line 44 in FIG. 3; and,

FIG. 5 is a schematic diagram illustrating a typewriter roller with a plurality of carbon copies and an original in position for engagement by the typewriter key for correcting an erroneous typed impression.

With continuing reference to the accompanying drawing, wherein like reference numerals designate similar parts throughout the various views, reference numeral 10 generally designates a multiple correction device constructed in accordance with the concept of the present invention. The multiple correction device includes a plurality of frames 12, 14, 16, 18, 20, 22, and 24. A suitable number of frames may be utilized and these frames are generally rectangular in shape, having triangular free ends 26 terminating in points 28 for facilitating insertion of the frames between the various sheets. The frames are provided with opposite end portions 30 of a rectangular shape through which a rivet 32 or the like fastener extends for holding the frames together so that they may be fanned out in any convenient manner for facilitating their use for their ultimate purpose. .Each of the frames is provided with a central rectangular opening 34 therethrough. The opening 34 in the frame 12 has a correction material with a pressure sensitive coating designated at 36. Such a material is sold under the trademark Ko-Rec-Type. The frames 14, 16, 18, 20, 22, and 24 have sheets of correction material 38, 40, 42, 44, 46 and 48 bonded thereto and overlying the openings, the sheets of correction material being in the form of a paper or the like provided with a coating of pressure sensitive material such as sold under the trademark K0- Rec-Copy. Examples of this type of correction material are set forth in the application of Victor Barough, Ser. No. 627,953, for Correction Material Having a Metallic Additive. Of course, various types of correction material may be utilized. The sheets of correction material are bonded to the frames along their edges which overlie the openings 34.

In use, the frame 12 is positioned so that the correction material 36 overlies the erroneous impression on the original sheet 50 of the typewritten document. The carbon copies 52, 54, 56, and 58, etc. are disposed beneath the original 50 and the frames 14, 16, 18, etc. are disposed between the copies 52, 54, 56, and 58, and the respective carbon sheets 60, 62, 64 and 66 and overlie the copies. Then, using the selected key, the type 70 of the erroneous letter is used to strike directly on the correction material 36. Then, frames 12, '14, 16, 18, etc., which are considerably thicker than their respective sheets of the correction material, safeguard the other typewritten impressions from being adversely affected "by the correction material and space the carbon paper sufficiently away from the carbon copies that no streaks or erroneous characters can be caused to form on the carbon copies while the carbon copies also have the incorrect impression struck over. The entire device may be inserted in place in a simple manner and withdrawn by merely a single movement on the entire device thus saving considerable elfort and time and preventing the unnecessary contact with the carbon paper of the typist which may cause carbon from carbon paper to be smeared on the typists hands and on the typewritten document.

The frames 12, 14, 16, 18, etc. may be formed of paperboard, synthetic plastic materials, and other paper 3 stock material, and are relatively rigid when compared to the correction material 36, 38, 40, 42, etc.

A latitude of modification, change and substitution is intended in the foregoing disclosure, and in some instances some features of the invention will be employed without a corresponding use of other vfeatures. Accordingly, it is appropriate that the appended claim be construed broadly and in a manner consistent with the spirit and scope of the invention herein.

We claim:

1. A multiple correction device for use in correcting typewritten errors comprising a plurality of frames, means pivotally securing one end of each of said frames to each other, said frames having openings therein, and a plurality of sheets of correction material bonded to said frames closing said openings, said sheets of correction material being formed of paper having a transferable coating thereon, said frames being substantially rectangular in shape, said openings being substantially rectangular, the free ends of each said frame being pointed in shape whereby to facilitate insertion of the frames individually between typewritten sheets to be corrected.

References Cited UNITED STATES PATENTS 1,184,314 5/1916 Bradford. 2,236,739 4/1941 Waltman 2821.2 2,277,667 3/ 1942 Rogers 28229 3,155,216 11/1964 Talmage 197l81 3,180,474 4/ 1965 Kuhlman 197181 3,356,201 12/ 1967 Fleischmann 282-29 X FOREIGN PATENTS 178,636 5/1954 Austria.

189,202 3/1957 Austria.

569,936 6/1945 Great Britain.

OTHER REFERENCES Advertisements appearing in The Washington Post, Oct. 30, 1960, and Nov. 21, 1960; The Washington Post C0., 1515 L St. NW., Washington, D.C., 20005.

CHARLES A. WILLMUTH, Primary Examiner.

MORRIS KAPLAN, Assistant Examiner. 

